Analysis of thermal oil boiler system and its application in industry

1. Overview of heat transfer oil boiler systems

A thermal oil boiler system is a device that heats thermal oil through fuel and is widely used in industrial applications where high temperature heat source is required. Compared with traditional steam boilers, thermal oil boilers are able to operate efficiently at low pressure and provide a stable heat source. It utilises thermal oil as a heat carrier and circulates in a closed system to transfer heat effectively to the production equipment.

Thermal oil boilers can heat oil liquids by burning different types of fuels such as coal, fuel oil, natural gas, etc., to meet the heat demand of different industries. Especially in the chemical, petroleum, food processing and other industries, thermal oil boiler as an important heating equipment, to ensure efficient and stable heating at the same time, also has the advantages of energy saving, environmental protection.

2. Working principle of heat conduction oil boiler

Thermal oil boiler burns fuel (e.g. natural gas, coal, heavy oil, etc.) through the burner and transfers the heat to the thermal oil inside the boiler. The temperature of heat-conducting oil rises after absorbing heat in the boiler and enters the circulating system to provide heat source to industrial equipment. Its workflow is as follows:

1. combustion process: The heat generated by the combustion of the fuel in the combustion chamber is transferred to the heat transfer oil through the heat exchange system.
2. heating process: Heat transfer oil absorbs heat through heat exchange in the boiler and the temperature rises continuously.
3. circulating heat: High-temperature heat transfer oil is circulated to the equipment through the pipeline, releasing heat to the equipment that needs to be heated.
4. temperature regulationAfter the temperature of the heat transfer oil drops through the heat exchanger or reflux system, it enters the boiler to be heated again, forming a closed-loop system.

3. Application areas of thermal oil boiler systems

Heat transfer oil boilers are widely used in industries that require a stable high-temperature heat source, and the following are a few typical application areas:

• Chemical industry: In the production of chemicals, high temperatures are often required to facilitate reactions and drying, and thermal oil boilers are able to provide a continuous and stable high temperature heat source.
• food processing: In the food industry, thermal oil boilers are used to heat frying equipment, drying equipment and steam generators.
• oil industry: High temperature treatment of crude oil is required in oil processing, and heat transfer oil boilers are widely used in oil refining process as an efficient heat source.
• pharmaceutical industry: Pharmaceutical production processes require strict temperature control, and thermal oil boiler systems can provide stable temperature control for precision equipment.

4. Types and characteristics of heat transfer oil boilers

• Coal-fired thermal oil boiler: The use of coal-fired as a heat source is suitable for areas with abundant coal resources, and the cost is relatively low, but the environmental requirements are high.
• Fuel oil heat transfer oil boiler: Provides heat by burning fuel oil, suitable for areas with abundant fuel oil resources, with high efficiency and stability.
• Vertical thermal oil boiler: This type of boiler is usually small and compact and is suitable for locations where space is limited.

These thermal oil boilers not only meet the heat demand of different industries, but also can be customised according to different working environments and technical requirements.

5. Optimisation of efficiency and energy savings in thermal oil boilers

The efficiency of thermal oil boilers is directly related to production costs and energy consumption. In order to improve the operating efficiency of the boiler, the following methods are recommended:

1. Regular maintenance and cleaning: The heat exchanger in the boiler is prone to reduce thermal efficiency due to dust and scale build-up. Clean the heat exchanger regularly to maintain heat transfer performance.
2. Optimisation of the combustion process: Use of high-efficiency burners and regulation of the amount of combustion to ensure adequate combustion of fuel and reduce heat waste.
3. Controlling the temperature of heat transfer oil: Reasonable control of the temperature of the heat transfer oil to avoid heat loss caused by ultra-high temperatures, while improving the efficiency of the system.
4. heat recovery system: Recovering heat from exhaust gases through a heat recovery system to improve overall efficiency and reduce energy consumption.

6. Heat transfer oil boiler common problems and solutions

• Boiler thermal cut-off problem: Thermal cut-off protection may be triggered when the thermal oil boiler overheats, resulting in system shutdown. The temperature control system should be checked regularly to ensure its sensitivity and accuracy.
• Heat transfer oil leakage: Leakage problems in thermal oil systems can lead to unstable temperatures and safety hazards. It is recommended that pipework sealing is checked regularly and that high quality pipes and fittings are used.

7. Summary and recommendations

As an efficient and energy-saving option for industrial heating equipment, thermal oil boiler systems have important application value in many industries. Through reasonable selection of boiler type, regular maintenance and optimisation of the combustion process, the working efficiency of thermal oil boilers can be effectively improved, energy consumption reduced and the service life of the equipment prolonged.

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Recommended Reading:

Working Principle and Efficiency Enhancement Guide for Thermal Oil Boiler - Jiangsu Ruiyuan Heating Equipment Technology Co.